problem in Change Directory in colab for google drive - directory

Question

I want download video from YouTube with youtube_dl with Colab and save it in google drive. I make a directory with the name of video title and save video in that folder. Then I use this code:
from google.colab import drive
drive.mount('/content/drive', force_remount=True)
URL = "https://www.youtube.com/watch?v=QTPP-iaF7BY&t=1955s"
!pip install youtube_dl
import youtube_dl
with youtube_dl.YoutubeDL({"ignoreerrors": True, "quiet": True}) as ydl:
playlist_dict = ydl.extract_info(URL, download=False)
print('\n', playlist_dict['title'], '\n')
import os
new_folder = playlist_dict['title']
path = f"//content//drive//MyDrive//{new_folder}//".replace("'"," ").replace(".","-").replace(":","-")
os.makedirs(path, exist_ok=True)
print('\n', path, '\n')
%cd {path}
But for the URL that I specified in the above code it get this error:
shell-init: error retrieving current directory: getcwd: cannot access parent directories: Transport endpoint is not connected
shell-init: error retrieving current directory: getcwd: cannot access parent directories: Transport endpoint is not connected
The folder you are executing pip from can no longer be found.
ERROR:root:Internal Python error in the inspect module.
Below is the traceback from this internal error.
Pillai "Hoeffding's Inequality"
//content//drive//MyDrive//Pillai "Hoeffding's Inequality"//
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/IPython/core/interactiveshell.py", line 2882, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "<ipython-input-13-dd9eae6c92da>", line 20, in <module>
get_ipython().magic('cd {path}')
File "/usr/local/lib/python3.7/dist-packages/IPython/core/interactiveshell.py", line 2160, in magic
return self.run_line_magic(magic_name, magic_arg_s)
File "/usr/local/lib/python3.7/dist-packages/IPython/core/interactiveshell.py", line 2081, in run_line_magic
result = fn(*args,**kwargs)
File "<decorator-gen-84>", line 2, in cd
File "/usr/local/lib/python3.7/dist-packages/IPython/core/magic.py", line 188, in <lambda>
call = lambda f, *a, **k: f(*a, **k)
File "/usr/local/lib/python3.7/dist-packages/IPython/core/magics/osm.py", line 288, in cd
oldcwd = py3compat.getcwd()
OSError: [Errno 107] Transport endpoint is not connected
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/IPython/core/interactiveshell.py", line 1823, in showtraceback
stb = value._render_traceback_()
AttributeError: 'OSError' object has no attribute '_render_traceback_'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/IPython/core/ultratb.py", line 1132, in get_records
return _fixed_getinnerframes(etb, number_of_lines_of_context, tb_offset)
File "/usr/local/lib/python3.7/dist-packages/IPython/core/ultratb.py", line 313, in wrapped
return f(*args, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/IPython/core/ultratb.py", line 358, in _fixed_getinnerframes
records = fix_frame_records_filenames(inspect.getinnerframes(etb, context))
File "/usr/lib/python3.7/inspect.py", line 1502, in getinnerframes
frameinfo = (tb.tb_frame,) + getframeinfo(tb, context)
File "/usr/lib/python3.7/inspect.py", line 1460, in getframeinfo
filename = getsourcefile(frame) or getfile(frame)
File "/usr/lib/python3.7/inspect.py", line 696, in getsourcefile
if getattr(getmodule(object, filename), '__loader__', None) is not None:
File "/usr/lib/python3.7/inspect.py", line 725, in getmodule
file = getabsfile(object, _filename)
File "/usr/lib/python3.7/inspect.py", line 709, in getabsfile
return os.path.normcase(os.path.abspath(_filename))
File "/usr/lib/python3.7/posixpath.py", line 383, in abspath
cwd = os.getcwd()
OSError: [Errno 107] Transport endpoint is not connected
with other URL in YouTube I haven't this problem and it downloads and saves correctly in Google Drive.
EDIT
With changing %cd {path} to os.chdir(path) the problem solved. But
I don't understand why %cd {path} work for some and don't work
for others.